ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,920, issued on Nov. 18, was assigned to TRANE INTERNATIONAL INC. (Davidson, N.C.).
"Lubrication system for compressors" was invented by Eric S. Mlsna (Cashton, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compressor includes a lubricant pump and a shaft having a lubricant vent extending through the shaft. The vent has an outlet, which can be provided below a stator-rotor assembly of a motor of the compressor. The shaft can be used in a variable speed compressor to convey excess lubricant when the pump is over-supplying lubricant due to operation at speeds greater than the minimum speed. The vent can be positioned at a center of the shaft. T...